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Finding the Fourth Proportional to 220,249.41, 304,130.34 and 139,819.65

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Solution

The fourth proportional to 220,249.41, 304,130.34 and 139,819.65 is: 193,069.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,249.41 : 304,130.34 = 139,819.65 : x
  2. Step 2: Convert to fraction form
    220,249.41/304,130.34 = 139,819.65/x
  3. Step 3: Cross multiply
    220,249.41x = 304,130.34 × 139,819.65
  4. Step 4: Simplify right side
    220,249.41x = 42,523,397,693.18
  5. Step 5: Solve for x
    x = 42,523,397,693.18/220,249.41
  6. Step 6: Final answer
    x = 193,069.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.